Bulletin I27107 rev. A 09/97 T..HFL SERIES T-Modules FAST RECOVERY DIODES Features 40 A 70 A 85 A Fast recovery time characteristics Electrically isolated base plate 3500 VRMS isolating voltage Standard JEDEC package Simplified mechanical designs, rapid assembly Large creepage distances UL E78996 approved Description This serie of T-module uses fast recovery power diodes in a single diode configuration. The semiconductors are electrically isolated from the metal base, allowing common heatsink and compact assemblies to be built. These single diode modules can be used in conjunction with the thyristor modules as a freewheel diode. Application includes self-commutated inverters, DC choppers, motor control, inductive heating and electronic welders. These modules are intended for those applications where very fast recovery characteristics are required and for general power switching applications. Major Ratings and Characteristics Parameters T40HFL T70HFL T85HFL Units I F(AV) 40 70 85 A I F(RMS) 63 110 133 A 475 830 1300 A I FSM I 2t 50Hz 60Hz 500 870 1370 A 50Hz 1130 3460 8550 A 2s 60Hz 1030 3160 7810 A 2s VRRM range 100 to 1000 V t rr range 200 to 1000 ns TJ range -40 to 125 www.irf.com o C 1 T..HFL Series Bulletin I27107 rev. A 09/97 ELECTRICAL SPECIFICATIONS Voltage Ratings Type number Voltage Code trr Code VRRM , maximum repetitive peak reverse voltage V VRSM , maximum non-repetitive IRRMmax. peak reverse voltage TJ= @25C V A 10 S02, S05, S10 100 150 T40HFL.. 20 S02, S05, S10 200 300 T70HFL.. 40 S02, S05, S10 400 500 T85HFL.. 60 S02, S05, S10 600 700 80 S05, S10 800 900 100 S05, S10 1000 1100 100 Forward Conduction Parameters IF(AV) Max. average fwd current @ Case temperature IF(RMS) Max. RMS forward current IFSM I2 t 40 70 70 70 85 70 A C 180 o conduction, half sine wave o 63 110 133 A Max. peak, one-cycle forward, non-repetitive 475 500 830 870 1300 1370 A surge current 400 700 1100 420 730 1150 1130 3460 8550 1030 3160 7810 t = 8.3ms reapplied 800 2450 6050 t = 10ms 100% VRRM 730 2230 5520 11300 34600 85500 0.82 0.87 0.84 0.84 0.90 0.86 7.0 2.77 2.15 6.8 2.67 2.07 1.60 1.73 1.55 Maximum I2t for fusing Maximum I2t for fusing I2t VF(TO)1 Low level value of threshold voltage VF(TO)2 High level value of threshold voltage rf1 Low level value of forward slope resistance rf2 High level value of forward slope resistance VFM T40HFL T70HFL T85HFL Units Conditions Max. forward voltage drop t = 10ms No voltage t = 8.3ms reapplied t = 10ms 100% VRRM A2s t = 8.3ms reapplied Sinusoidal half wave, t = 10ms No voltage Initial TJ = TJ max. t = 8.3ms reapplied A2s t = 0.1 to 10ms, no voltage reapplied V TJ = 25 o C, (16.7% x x IF(AV) < I < x IF(AV)) T J = 25 oC, (I > x I F(AV)) m TJ = 25 oC, (16.7% x x IF(AV) < I < x IF(AV) ) TJ = 25 oC, (I > x IF(AV)) V IFM = x I F(AV), TJ = 25 oC, tp = 400s square wave Av. power = VF(TO) x IF(AV) + rf x (IF(RMS))2 Blocking Parameters IRRM Max. peak rev. leak. current VINS RMS isolation voltage 2 T40HFL T70HFL T85HFL Units Conditions 20 mA 3500 V TJ = 125o C 50Hz, circuit to base, all terminals shorted TJ = 25C, t = 1 s www.irf.com T..HFL Series Bulletin I27107 rev. A 09/97 Thermal and Mechanical Specifications Parameters T40HFL T70HFL T85HFL Units Conditions TJ Junction operating temp. -40 to 125 o Tstg Storage temperature range -40 to 150 o RthJC Max. internal thermal RthC-S T wt 0.85 resistance junction to case Thermal resistance, case to heatsink Mounting Base to torque 10% heatsink Busbar to Terminal Approximate weight Case style C C 0.53 0.46 K/W Per module, DC operation Mounting surface flat, smooth and greased. Per module Nm M3.5 mounting screws (2) Non-lubricated threads Nm M5 screws terminals; non-lubricated threads g (oz) See outline table T-MODULE 0.2 K/W 1.3 10% 3 10% 54 (19) D-56 (2) A mounting compound is recommended and the torque should be rechecked after a period of about 3 hours to allow for the spread of the compound R Conduction (The following table shows the increment of thermal resistance RthJC when devices operate at different conduction angles than DC) Devices Sinusoidal conduction @ TJ max. Rectangular conduction @ TJ max. 180o 120o 90o 60o 30o 180o 120o 90o 60o 30o T40HFL 0.06 0.08 0.10 0.14 0.24 0.05 0.08 0.10 0.15 0.24 T70HFL 0.05 0.06 0.08 0.11 0.19 0.04 0.06 0.08 0.12 0.19 T85HFL 0.04 0.05 0.06 0.09 0.15 0.03 0.05 0.07 0.09 0.015 Units K/W Reverse Recovery Characteristics T40HFL T70HFL T85HFL Parameter Units Conditions (*) S02 S05 S10 S02 S05 S10 S02 S05 S10 trr Maximum reverse 70 110 270 70 110 270 80 120 290 ns Q rr Maximum reverse recovered charge TJ = 25 C, -di F/dt = 100A/s IF = 1 A to VR = 30V recovery time 200 500 1000 200 500 1000 200 500 1000 ns 0.25 0.4 0.55 2.0 1.35 0.25 0.4 1.35 0.3 0.6 1.6 C 8.0 3.5 1.5 C 0.6 2.1 8.5 0.8 TJ = 25 C, -di F/dt = 25A/s IFM = x rated IF(AV), VR = -30 V TJ = 25 C, -di F/dt = 100A/s IF = 1 A to VR = 30V TJ = 25 C, -di F/dt = 25A/s IFM = x rated IF(AV) VR = -30 V (*) Tested on LEM 300A Diodemeter Tester www.irf.com 3 T..HFL Series Bulletin I27107 rev. A 09/97 Ordering Information Table Device Code T 1 40 HFL 100 S10 2 3 4 1 - Module type 2 - Current rating: 3 - Fast recovery diode 4 - Voltage code : code x 10 = VRRM 5 - trr code: 5 40 = 40A (avg) 70 = 70A (avg) 85 = 85A (avg) S02 = 200ns S05 = 500ns S10 = 1000ns Outline Table All dimensions in millimeters (inches) 4 www.irf.com T..HFL Series 130 T40HFL.. Series R thJC (DC) = 0.85 K/W 120 110 100 Conduction Angle 90 80 30 70 60 90 60 120 180 50 0 10 20 30 40 50 Maximum Allowable Case Temperature (C) Maximum Allowable Case Temperature (C) Bulletin I27107 rev. A 09/97 130 T40HFL.. Series R thJC (DC) = 0.85 K/W 120 110 100 Conduction Per iod 90 80 30 90 120 180 60 0 Average Forward Current (A) 90 80 70 60 90 120 60 180 50 0 10 20 30 40 50 60 70 80 Maximum Allowable Case Temperature (C) Maximum Allowable Case Temperature (C) Conduction Angle 30 Conduction Angle 90 80 60 90 120 60 180 50 0 10 20 30 40 50 60 70 80 Average Forward Current (A) Fig. 5 - Current Ratings Characteristics www.irf.com 90 Maximum Allowable Case Temperature (C) Maximum Allowable Case Temperature (C) 110 70 60 70 110 100 Conduction Period 90 80 30 60 70 90 120 60 180 DC 80 100 50 0 20 40 60 120 Fig. 4 - Current Ratings Characteristics thJC 30 50 Average Forward Current (A) T85HFL.. Series R (DC) = 0.46 K/W 100 40 T70HFL.. Series R thJC (DC) = 0.53 K/W 120 Fig. 3 - Current Ratings Characteristics 120 30 130 Average Forward Current (A) 130 20 Average Forward Current (A) 110 100 10 Fig. 2 - Current Ratings Characteristics T70HFL.. Series R thJC (DC) = 0.53 K/W 120 DC 50 Fig. 1 - Current Ratings Characteristics 130 60 70 130 T85HFL.. Series R (DC) = 0.46 K/W 120 thJC 110 100 Conduction Period 90 80 30 70 60 90 120 60 180 DC 50 0 20 40 60 80 100 120 140 Average Forward Current (A) Fig. 6 - Current Ratings Characteristics 5 T..HFL Series 180 120 90 60 30 60 50 RMS Limit 40 30 20 Conduction Angle T40HFL.. Series T J= 125C 10 0 Maximum Average Forward Power Loss (W) 10 15 20 25 30 35 40 90 DC 180 120 90 60 30 80 70 60 50 RMS Limit 40 30 Conduction Period 20 T40HFL.. Series T J = 125C 10 0 0 10 20 30 40 50 60 70 Average Forward Current (A) Average Forward Current (A) Fig. 7 - Forward Power Loss Characteristics Fig. 8 - Forward Power Loss Characteristics 100 180 120 90 60 30 90 80 70 60 RMS Limit 50 40 30 Conduction Angle 20 T70HFL.. Series T J = 125C 10 0 0 10 20 30 40 50 60 140 DC 180 120 90 60 30 120 100 80 60 RMS Limit Conduction Period 40 T70HFL.. Series T J = 125C 20 0 70 0 20 40 60 80 100 120 Average Forward Current (A) Average Forward Current (A) Fig. 9 - Forward Power Loss Characteristics Fig. 10 - Forward Power Loss Characteristics 110 180 120 90 60 30 100 90 80 70 RMS Limit 60 50 40 Conduction Angle 30 T85HFL.. Series T J= 125C 20 10 0 0 6 5 Maximum Average Forward Power Loss (W) 0 Maximum Average Forward Power Loss (W) 70 Maximum Average Forward Power Loss (W) Maximum Average Forward Power Loss (W) Maximum Average Forward Power Loss (W) Bulletin I27107 rev. A 09/97 10 20 30 40 50 60 70 80 90 160 DC 180 120 90 60 30 140 120 100 80 RMS Limit 60 Conduction Period 40 T85HFL.. Series T J = 125C 20 0 0 20 40 60 80 100 120 140 Average Forward Current (A) Average Forward Current (A) Fig. 11 - Forward Power Loss Characteristics Fig. 12 - Forward Power Loss Characteristics www.irf.com T..HFL Series 450 At Any Rated Load Condition And With Rated V RRM Applied Following Surge. Initial T J= 125C @ 60 Hz 0.0083 s @ 50 Hz 0.0100 s 400 350 300 250 200 150 T40HFL.. Series 100 1 10 Peak Half Sine Wave Forward Current (A) Peak Half Sine Wave Forward Current (A) Bulletin I27107 rev. A 09/97 100 500 450 400 350 300 250 200 150 600 500 400 300 T70HFL.. Series 200 1 10 100 850 750 650 450 350 250 150 0.01 1000 900 800 700 600 500 T85HFL.. Series 400 300 1 10 100 Number Of Equal Amplitude Half Cycle Current Pulses (N) Fig. 17 - Maximum Non-Repetitive Surge Current www.irf.com 0.1 1 Fig. 16 - Maximum Non-Repetitive Surge Current Peak Half Sine Wave Forward Current (A) Peak Half Sine Wave Forward Current (A) 1100 T70HFL.. Series Pulse Train Duration (s) Fig. 15 - Maximum Non-Repetitive Surge Current At Any Rated Load Condition And With Rated V RRM Applied Following Surge. Initial T J= 125C @ 60 Hz 0.0083 s @ 50 Hz 0.0100 s Maximum Non Repetitive Surge Current Versus Pulse Train Duration. Initial T J = 125C No Voltage Reapplied Rated V RRM Reapplied 550 Number Of Equal Amplitude Half Cycle Current Pulses (N) 1200 1 Fig. 14 - Maximum Non-Repetitive Surge Current Peak Half Sine Wave Forward Current (A) Peak Half Sine Wave Forward Current (A) 700 0.1 Pulse Train Duration (s) Fig. 13 - Maximum Non-Repetitive Surge Current At Any Rated Load Condition And With Rated V RRM Applied Following Surge. Initial TJ = 125C @ 60 Hz 0.0083 s @ 50 Hz 0.0100 s T40HFL.. Series 100 0.01 Number Of Equal Ampli tude Half Cycle Current Pulses (N) 800 Maximum Non Repetitive Surge Current Versus Pulse Train Duration. Initial T J = 125C No Voltage Reapplied Rated VRRM Reapplied 1300 1200 1100 1000 Maximum Non Repetitive Surge Current Versus Pulse Train Duration. Initial T J = 125C No Voltage Reapplied Rated V RRM Reapplied 900 800 700 600 500 400 300 0.01 T85HFL.. Series 0.1 1 Pulse Train Duration (s) Fig. 18 - Maximum Non-Repetitive Surge Current 7 T..HFL Series 0.48 100A 50A 0.47 0.46 T40HFL..S02 T70HFL..S02 T J = 125 C 0.45 10 100 4 3 T40HFL..S02 T70HFL..S02 T J = 125 C 2 1 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 19 - Recovery Time Characteristics Fig. 20 - Recovery Charge Characteristics 1.1 1 I FM= 300A 0.9 220A 172A 0.8 100A 50A 0.7 T40HFL..S05 T70HFL..S05 T J = 125 C 0.6 10 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 22 - Recovery Time Characteristics Maximum Reverse Recovery Time - Trr (s) 5 Maximum Reverse Recovery Charge - Qrr (C) Maximum Reverse Recovery Time - Trr (s) Rate Of Fall Of Forward Current - di/dt (A/s) 6 1.8 1.7 I FM= 300A 1.6 200A 1.5 100A 1.4 50A 1.3 1.2 1.1 1 10 T40HFL..S10 T70HFL..S10 T J = 125 C 100 20 18 16 I FM= 300A 220A 172A 100A 50A 14 12 10 8 6 T40HFL..S05 T70HFL..S05 T J = 125 C 4 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 23 - Recovery Charge Characteristics 40 35 I FM= 300A 200A 30 100A 25 50A 20 15 10 T40HFL..S10 T70HFL..S10 T J = 125 C 5 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 25 - Recovery Time Characteristics Fig. 26 - Recovery Charge Characteristics 8 Maximum Reverse Recovery Current - Irr (A) 220A 172A 7 I FM= 300A 220A 172A 100A 50A 20 18 16 I FM= 300A 220A 172A 100A 50A 14 12 10 8 T40HFL..S02 T70HFL..S02 T J = 125 C 6 4 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 21 - Recovery Current Characteristics Maximum Reverse Recovery Current - Irr (A) I FM = 300A 0.49 8 28 26 24 22 I FM= 300A 220A 172A 100A 50A 20 18 16 14 12 10 8 T40HFL..S05 T70HFL..S05 T J = 125 C 6 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 24 - Recovery Current Characteristics Maximum Reverse Recovery C urrent - Irr (A) 0.5 Max imum Reverse Re covery Charge - Qrr (C) Maximum Reverse Recovery Time - Trr (s) 0.51 Maximum Reverse Recovery Charge - Qrr (C) Bulletin I27107 rev. A 09/97 45 I FM= 300A 40 200A 100A 35 50A 30 25 20 15 T40HFL..S10 T70HFL..S10 T J = 125 C 10 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 27 - Recovery Current Characteristics www.irf.com T..HFL Series 200A 100A 0.8 50A 0.7 T85HFL..S02 T J = 125C 0.6 10 100 Rate Of Fall Of Forward Current - di/dt (A/s) Maximum Reverse Recovery Time - Trr (s) Fig. 28 - Recovery Time Characteristics 1.3 1.2 IFM = 300A 1.1 200A 1 100A 50A 0.9 T85HFL..S05 T J = 125C 0.8 10 100 Rate Of Fall Of Forward Current - di/dt (A/s) Maximum Reverse Recovery Time - Trr (s) Fig. 31 - Recovery Time Characteristics 2 1.9 1.8 I FM = 300A 1.7 1.6 200A 1.5 100A 1.4 1.3 1.2 1.1 T85HFL..S10 T J = 125C 1 10 50A 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 34 - Recovery Time Characteristics www.irf.com 200A 100A 15 50A 10 T85HFL..S02 T J = 125 C 5 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 29 - Recovery Charge Characteristics 30 IFM = 300A 27 200A 24 21 18 100A 50A 15 12 9 T85HFL..S05 T J = 125C 6 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Fo rward Current - di/dt (A/s) Fig. 32 - Recovery Charge Characteristics 55 50 45 40 IFM = 300A 200A 100A 35 30 50A 25 20 15 T85HFL..S10 T J = 125C 10 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 35 - Recovery Charge Characteristics Maximum Reverse Recovery Current - Irr (A) 0.9 20 28 26 24 IFM = 300A 200A 100A 50A 22 20 18 16 14 12 10 8 T85HFL..S02 T J = 125C 6 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 30 - Recovery Current Characteristics Maximum Reverse Recovery Current - Irr (A) IF M = 300A IFM = 300A 35 IFM = 300A 200A 30 100A 50A 25 20 15 T85HFL..S05 T J = 125C 10 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 33 - Recovery Current Characteristics Maximum Reverse Recovery Current - Irr (A) 1 Maximum Reverse Recovery Charge - Qrr (C) 1.1 Maximum Reverse Recovery Charge - Qrr (C) 1.2 Maximum Reverse Recovery Charge - Qrr (C) Maximum Reverse Recovery Time - Trr (s) Bulletin I27107 rev. A 09/97 25 60 55 50 IFM = 300A 200A 100A 45 50A 40 35 30 25 20 T85HFL..S10 T J = 125C 15 10 20 30 40 50 60 70 80 90 100 Rate Of Fall Of Forward Current - di/dt (A/s) Fig. 36 - Recovery Current Characteristics 9 T..HFL Series Bulletin I27107 rev. A 09/97 Peak Forward Current (A) 1E4 tp T40HFL.. Series Trapezoidal Pulse T C = 70 C 1E3 1E2 20000 10000 5000 2500 1500 100 0 400 200 50 Hz 5000 2500 1500 1000 tp 1E1 1E1 400 200 50 Hz T40HFL.. Series Sinusoidal Pulse T = 70C C 1E2 1E1 1E4 1E1 1E4 1E3 1E2 Pulse Basewidth (s) 1E3 1E4 Pulse Basewidth (s) Fig. 37 - Frequency Characteristics Peak Forward Current (A) 1E4 tp T40HFL.. Trapezoidal Pulse T C= 90 C 1E3 1E2 20000 10000 5000 2500 1500 1000 400 200 50 Hz 5000 tp 1E1 1E1 2500 1500 1000 400 200 50 Hz T40HFL.. Series Sinusoidal Pulse T C= 90C 1E2 1E1 1E4 1E4 1E1 1E3 1E2 Pulse Basewidth (s) 1E3 1E4 Pulse Basewidth (s) Fig. 38 - Frequency Characteristics 1E4 Peak Forward Current (A) 20 joules per pulse 1E3 0.1 0.04 0.4 2 10 20 joules per pulse 4 0.4 0.02 1E2 0.04 0 .02 0.01 0.01 1E1 tp 1E0 1E1 0.2 1 4 T40HFL.. Series Sinusoidal Pulse T J = 125 C 1E2 tp 1E3 Pulse Basewidth (s) 1E4 1E1 1E4 1E1 1 10 2 0.2 0.1 T40HFL.. Series Trapezoidal Pulse T J = 125C di/dt = 50A/s 1E2 1E3 1E4 Pulse Basewidth (s) Fig. 39 - Maximum Forward Energy Power Loss Characteristics 10 www.irf.com T..HFL Series Bulletin I27107 rev. A 09/97 Peak Forward Current (A) 1E4 1E3 20000 10000 5000 2500 1500 1000 400 200 50 Hz 5000 1E2 tp 1E1 1E1 T70HFL.. Series Sinusoidal Pulse T C= 70C tp 1E2 4 00 200 50 Hz T70HFL.. Series Trapezoidal Pulse T C= 70C 1E4 1E1 1E4 1E1 1E3 2500 1500 1000 1E2 1E3 1E4 Pulse Basewidth (s) Pulse Basewidth (s) Fig. 40 - Frequency Characteristics Peak Forward Current (A) 1E4 1E3 1E2 2000 0 10000 5000 2500 1500 1000 400 200 50 Hz 5000 tp 1E1 1E1 T70HFL.. Series Sinusoidal Pulse T C= 90C tp 1E2 400 2 00 50 Hz T70HFL.. Series Trapezoidal Pulse T C= 90C 1E4 1E41E1 1E1 1E3 250 0 1500 1000 1E2 Pulse Basewidth (s) 1E3 1E4 Pulse Basewidth (s) Fig. 41 - Frequency Characteristics 1E4 Peak Forward Current (A) 20 joules per pulse 4 1E3 1 0.1 0.04 0.02 1E2 20 joules per pulse 10 2 1 0.4 0. 2 tp 0.02 T70HFL.. Series Sinusoidal Pulse T J = 125C 1E2 10 0.2 0.04 0.01 tp 1E0 1E1 4 0.4 0.1 0.01 1E1 2 1E3 Pulse Basewidth (s) 1E41E1 1E4 1E1 T70HFL.. Series Trapezoidal pulse T J = 125C di/dt = 50A/s 1E2 1E3 1E4 Pulse Basewidth (s) Fig. 42 - Maximum Forward Energy Power Loss Characteristics www.irf.com 11 T..HFL Series Bulletin I27107 rev. A 09/97 Peak Forward Current (A) 1E4 1E3 20000 1000 0 5000 2500 1500 1000 400 200 50 Hz 5000 2500 1500 1000 40 0 200 50 Hz 1E2 tp T85HF L.. Series Sinusoidal Pulse T C= 70C 1E1 1E1 tp 1E2 T85HFL.. Series Trapezoidal Pulse T C= 70C 1E4 1E41E1 1E1 1E3 1E2 Pulse Basewidth (s) 1E3 1E4 Pulse Basewidth (s) Fig. 43 - Frequency Characteristics Peak Forward Current (A) 1E4 1E3 20000 10000 400 5000 2500 1500 1 000 200 50 Hz 1E2 5000 2500 1500 1000 tp 1E1 1E1 T85HFL.. Series Sinusoidal Pulse T C= 90C 1E4 1E1 1E41E1 1E3 200 50 Hz T85HFL.. Series Trapezoidal Pulse T C= 90C tp 1E2 400 1E2 1E3 1E4 Pulse Basewidth (s) Pulse Basewidth (s) Fig. 44 - Frequency Characteristics 1E4 20 joules per pulse 20 joules per pulse 10 Peak Forward Current (A) 4 1E3 1 0.4 tp 0.01 T85HFL.. Series Sinusoidal Pulse T J = 125 C 1E2 1 0.2 0.1 0.04 0 .02 0.1 0.04 0.02 0.01 1E1 10 2 0.4 0.2 1E2 1E0 1E1 4 2 tp 1E3 Pulse Basewidth (s) 1E4 1E41E1 1E1 T85HFL.. Series Trapezoidal Pulse T J= 125C di/dt = 50A/s 1E2 1E3 1E4 Pulse Basewidth (s) Fig. 45 - Maximum Forward Energy Power Loss Characteristics 12 www.irf.com T..HFL Series Bulletin I27107 rev. A 09/97 10000 Instantaneous Forward Current (A) Instantaneous Forward Current (A) 1000 100 T J= 25C T J= 125C 10 T40HFL.. Series 1 0.5 1000 100 T J= 25C T J = 125C 10 T70HFL.. Series 1 1 1.5 2 2.5 3 3.5 4 0 4.5 1 2 3 4 5 6 7 Instantaneous Forward Voltage (V) Instantaneous Forward Voltage (V) Fig. 46 - Forward Voltage Drop Characteristics Fig. 47 - Forward Voltage Drop Characteristics Instantaneous Forward Current (A) 10000 1000 T J= 25C T J= 125C 100 T85HFL.. Series 10 0 1 2 3 4 5 6 7 Instantaneous Forward Voltage (V) Transient Thermal Impedance Z thJC (K/W) Fig. 48 - Forward Voltage Drop Characteristics 1 0.1 Steady State Value: R thJC = 0.85 K/W R thJC = 0.53 K/W R thJC = 0.46 K/W (DC Operation) T40HFL.. Series T70HFL.. Series T85HFL.. Series 0.01 0.001 0.00001 0.0001 0.001 0.01 0.1 1 10 100 Square Wave Pulse Duration (s) Fig. 49 - Thermal Impedance ZthJC Characteristics www.irf.com 13